Larc:
I have been wondering this same thing as well. Which came first, the chicken or the egg? Is it the religion that makes people do these things, or does the religion attract a certain type of person who then ends up doing these things? As a silent lamb, and a person who was also verbally, physically and emotionally abused by JWs, I think it is both. There is something to be said for the type of personality that is attracted to a religion that is that rigid, that drains all of the fun from things, that sets them up as being the "chosen" and all others are wrong, and anyone or anything that might be against them as being from the devil. Think about it, this whole religion is built around the world ending, and they being the only ones around. That takes a certain personality to want that and then to believe it.
From that place, it is hard to live life. The more rigid the rules, the more acts of brutality. And, as children are about the only ones who are less powerful, a lot of the brutality is against children and women -- anyone too powerless to fight back.
Obviously the religion fulfills some need, my guess is a need for power that people don't feel they have. People who feel powerless, will take it out on those who have less power.
Man shall be called to account for every permitted pleasure he failed to enjoy -- The Talmud.